Kieler, Wisconsin Demographics & Population 2026

A note before these figures: with a population of 358, Kieler's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Kieler is a small community located in Wisconsin, within Grant County. The total population is 358. It ranks as the 596th most populous out of 808 Census-designated places in Wisconsin.

Age Demographics

The median age in Kieler is 54.6 years. This is 36% higher than the state median of 40.2 years. Only 10.3% of residents are under 18, indicating fewer families with children. 13.1% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Kieler is $78,750. This is 2% higher than the state median of $77,485. It is also 2% lower than the national median of $80,734. The poverty rate stands at 5.6%. This is 47% lower than the state poverty rate of 10.5%. The survey records no unemployed residents in Kieler, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $220,500. Housing costs are 17% lower than the state median of $266,500. With a home-value-to-income ratio of just 2.8x, Kieler is one of the most affordable housing markets in the area. 65.3% of occupied housing units are owner-occupied. This homeownership rate is 4% lower than the state average of 67.8%.

Race & Ethnicity

Every resident counted in Kieler was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

20.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% lower than the state rate of 33.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.7%.

Data Sources & Methodology

All demographic data for Kieler, Wisconsin is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 808 Census-designated places in Wisconsin. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.